Preferred method to replace current MS350-48P L3 Stack with new MS350-48FP switches

[john-richards]

The hardware does not match perfectly and they are stacked so I believe cloning is out of the question.

Looking to copy the configs over to new stack and retire the old.

[aleabrahao · Accepted solution]

Take a look ate the documentation.

https://documentation.meraki.com/General_Administration/Support/Swapping_MS350s_and_MX84s_with_Replacements

[john-richards]

Thanks for the link, however, I am looking to replace the entire Core L3 stack with a new stack. Not just a single member. It appears that I am going to have to build the new stack in parallel as a L2 stack, move the connections over, shutdown the L3 interfaces on the old and bring them up on the new, one by one. I don't see any other way.

[aleabrahao]

This is the best way to configure in parallel and replace in a maintenance window.

[MerakiGnome]

Hi @john-richards - this would be my preferred route as well. Nice and controlled

[john-richards]

It appears that the new MS350-48FP can be stacked with the old MS350-48. Is it feasible to replace a stack member with a new switch then replace the other with a new switch and call it a day? Not sure if that is recommended or even possible.

[CMR]

I would have thought you could do this, but it isn't something I have tried.

[Philip D'Ath]

You can't clone stack configs.

This would need to be an API-style script. If it is only one stack - the quickest solution will be to do it manually with two open windows.

[CMR]

@Philip D'Ath what about stack replace member, or will that not allow an MS350-48FP to replace an MS350-48P?

[Philip D'Ath]

Good point, and I can see from the comments that this is the approach that @john-richards used.

[john-richards]

I am going to try replacing a stack member (twice) today. I will report back on the results. Thanks

[john-richards]

I performed the double replacement this morning and it worked like a champ. I just followed the document that alemabrahao posted. I swapped the bottom switch first, gave it time to settle in, then the top. Thanks everyone for your input.